Sony CDP-SP55 / CMT-SP55MD / CMT-SP55TC Service Manual ▷ View online
13
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
J
: CD (ANALOG)
c
: CD (DIGITAL)
• Abbreviation
AED
: North European model
HK
: Hong Kong model
MY
: Malaysia model
SP
: Singapore model
KR
: Korea model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Indication of transistor
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
B
These are omitted.
C
E
SECTIOIN 5
DIAGRAMS
14
• WAVEFORMS
1
IC101
yj
(XTAO)
PLAY MODE
6.4Vp-p
59nsec
1.2Vp-p
2
IC101
ta
(RFAC)
PLAY MODE
3
IC101
ra
(TE)
PLAY MODE
4
IC101
el
(FE)
PLAY MODE
1
µ
sec/div
approx 300mVp-p
approx 400mVp-p
– BD BOARD –
5-1. CIRCUIT BOARDS LOCATION
MAIN board
PANEL 1 board
PANEL 2 board
LOADING board
BD board
CDP-SP55
15
15
5-2. BLOCK DIAGRAM
E
F
A
B
C
D
DRIVE
Q101
LD
RF EQ
AMP
SUMMING
AMP
RF
ERROR
AMP
FOCUS
ERROR
AMP
TRACKING
APC LD
AMP
VC
BUFFER
VC
REF
RF AMP
IC103
DIGITAL SERVO
DIGITAL SIGNAL PRCESSOR
IC101
IC701
LASER
DIODE
DETECTOR
OPTICAL PICK-UP BLOCK
(KSM-213DCP/Z-NP)
A
C
D
B
E
F
LD
POWER
PD
LD
PD
LD
A
C
D
B
E
F
TE
FE
RFD
RFI
ASYMMETRY
CORRECTION
AUTO
SEQUENCER
SERVO
INTEG-
RATOR
DIGITAL
PLL
EFM
DEMODULATOR
SUB CODE
PROCESSOR
ERROR
CORRECTOR
INTERNAL BUS
16K
RAM
D/A
INTERFACE
DIGITAL
DIGITAL
OUT
OPTICAL
OUT
DOUT
S771-778
Q741
Q742
SERVO
INTERFACE
DIGITAL
CLV
LD ON
OP AMP
ANALOG SW
A/D
CONVERTER
PWM
GENERATOR
TRACKING
PWM
GENERATOR
FOCUS
PWM
GENERATOR
SLED
PWM
GENERATOR
VC
TRACKING
SERVO
FOCUS
SERVO
SLED
SERVO
SERVO DSP
TFDR
TRDR
FFDR
FRDR
SFDR
SRDR
MDP
D OUT
S STOP
RFDC
FE
TE
SE
CPU
INTERFACE
SENS
DATA
XLAT
CLOK
CLOCK
GENERATOR
XTAI
R-ch
XTAO
M
M
TRACKING
COIL
FOCUS
COIL
SLED
MOTOR
M102
SPINDLE
MOTOR
M101
T+
T
F+
F
SD+
SD
SP+
SP
FOCUS/TRACKING COIL DRIVE
SPINDLE/SLED MOTOR DRIVE
IC102
VC
TFDR
TRDR
FFDR
FRDR
SFDR
SRDR
XRST
MUTE
09
S101
LIMIT SW
SQCK
XRST
SENS
SYSTEM
CONTROL
2
DATA
SCLK
XLAT
CLOK
SCOR
SQSO
SCOR
SQSO
SQCK
CDMSW
HOLD
LOAD IN
LOAD OUT
RF AC
ASYI
ASYO
CONTROL SIGNAL
BLOCK
SERVO
BLOCK
VCC
VC
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
:
CD (ANALOG)
:
CD (DIGITAL)
5
7
8
6
11
10
3
4
23
24
27
25
20
22
21
12
13
17
14
16
51
48
49
43
38
41
39
40
31
30
33
32
29
28
26
60
72
71
66
75
70
8
67
20
7
6
5
2
1
9
27
3
14
1
RESET
IC741
S1
OPEN/CLOSE
SWITCH
OPEN/CLOSE
SWITCH
3
OUT1
IC731
LOADING MOTOR DRIVER
2
OUT2
10
IN1 5
IN2 6
17
11
16
14
12
15
10
9
8
13
1
3
7
6
5
18
11
12
13
14
18
17
16
15
2
3
5
6
INTEG-
RATOR
SERIAL IN
INTERFACE
OVER SAMPLING
DIGITAL
FILTER
3rd ORDER
NOISE SHAPER
PWM
L OUT
R OUT
PLAY-LED
PAUSE-LED
CD KEY
CN701
TIMING
LOGIC
KEY
MATRIX
LED
DRIVER
D782
D781
LED
DRIVER
X101
16.9344MHz
16.9344MHz
XLON
M
M103
LOADING
MOTOR
LOADING
MOTOR
FROM
ST-SP55
ST-SP55
CDP-SP55
16
16
5-3. PRINTED WIRING BOARD – BD SECTION – • See page 14 for Circuit Boards Location.
There are a few cases that the part isn't mounted
in model is printed on diagram.
in model is printed on diagram.
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